IOS：利用UIImageView制作帧动画

代码比较简单不用解释

-(UIImageView *)singPict{
    if (!_singPict) {//
        _singPict=[[UIImageView alloc]initWithFrame:CGRectMake(screenWidth/2-140, screenHeight/2-85,280, 80)];
        _singPict.contentMode=UIViewContentModeScaleAspectFit;
        _singPict.backgroundColor=[UIColor clearColor];
        UIImage *im1 = [UIImage imageNamed:@"singPict1.png"];
        UIImage *im2 = [UIImage imageNamed:@"singPict2.png"];
        UIImage *im3 = [UIImage imageNamed:@"singPict3.png"];
        UIImage *im4 = [UIImage imageNamed:@"singPict4.png"];
        NSArray *imArr = @[im1,im2,im3,im4];
        [_singPict setAnimationImages:imArr];
        //设定动画时间
        [_singPict setAnimationDuration:0.5];

        //设置播放次数，0表示无限播放
        [_singPict setAnimationRepeatCount:0];

        //开始播放
        [_singPict startAnimating];
        //结束播放
//        [_singPict stopAnimating];
        [self.view addSubview:_singPict];
    }
    return _singPict;
    
}